unix: add Fstatat on Linux for all GOOSes

Looks like it's enough to just add wrappers pointing to the
corresponding SYS_FSTATAT{,64} or SYS_NEWFSTATAT syscall. Add a test to
verify that assumption which checks that the returned stat data matches
what is returned by Stat/Lstat.

Also add the AT_NO_AUTOMOUNT constant which may be used for the flags
parmeter.

Fixes golang/go#14216

Change-Id: I73f27b483bd97d2dcf09d4b95a7957e75d194395
Reviewed-on: https://go-review.googlesource.com/79795
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser
2017-11-24 17:10:47 +00:00
committed by Brad Fitzpatrick
parent a13efeb2fd
commit 4ff8c001ce
32 changed files with 208 additions and 1 deletions
+1
View File
@@ -512,6 +512,7 @@ type EpollEvent C.struct_my_epoll_event
const (
AT_FDCWD = C.AT_FDCWD
AT_NO_AUTOMOUNT = C.AT_NO_AUTOMOUNT
AT_REMOVEDIR = C.AT_REMOVEDIR
AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW
AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW